Within the past week or so I've noticed a smell of gas in my jeep, had some evap system leak codes appear but I replaced a solenoid which so far has kept the engine light off, next thing I thought of was my subwoofer being screwed into the gas tank accidentally but that was several weeks ago, so that doesn't make sense either, the smell is the strongest towards the back of the jeep (close to the tank) but I see no visible leaks, gas mileage is the same too so I dont think in leaking gas, only vapors maybe?

The smell dissipates here and there, sometimes when I stop or when I start to move, although it gets stronger as the time goes on.

 

Performing a smoke test will show the leak.

 

That's not the test where you light up in the Jeep....